https://doi.org/10.65294/gpogc.2026.09
Python-based
modelling improves torque and drag modelling in horizontal extended reach well V.A. Iskandarov, G.V. Jabbarova,
Y.Y. Shmoncheva, R.R. Tashmenov
Extended-reach drilling (ERD) wells are
increasingly deployed to maximize reservoir exposure while reducing surface
footprint, particularly in offshore environments. In Field X, typical ERD wells
reach ~7,500 m measured depth (MD) with more than 3,000 m of horizontal
departure, drilled from an offshore platform in 330 m water depth. These wells
include two aggressive build-up sections—commonly 10–12°/30 m DLS—before
entering long horizontal intervals drilled through alternating sandstone and
shale. This complex geometry significantly elevates friction and drag, making
accurate torque and drag (T&D) modelling crucial for successful
casing-running operations, stuck-pipe avoidance, and overall well delivery
reliability.